Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology最新文献

{"title":"Determination of doxorubicin amount conjugated to mPEG-b-PCL copolymer via pH sensitive hydrazone bond","authors":"Gülhan Işik, A. Tezcaner, N. Hasirci, A. Kiziltay","doi":"10.5505/turkhijyen.2022.04317","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.04317","url":null,"abstract":"Objective: The aim of this study was to find the efficient medium to bind an anticancer drug, Doxorubicin (DOX), to a synthesized polymer, methoxy poly(ethylene glycol)-block-polycaprolactone (mPEG-b-PCL) via pH sensitive hydrazone bonds and to determine the amount of conjugated drug. Methods: DOX conjugation was carried out in two different media [dimethyl sulfoxide (DMSO) and methanol-trifluoroacetic acid (MeOH-TFA)]. The amount of conjugated drug was determined with two different methods. One method was applied the dissolution of the conjugate in chloroform: methanol (Ch: MeOH, 1: 1 v/v) solution without considering pH responsiveness, and the other method was after breaking pH sensitive hydrazone bonds in acidic medium [using three different media as 0.1 M hydrochloric acid (HCl), concentrated HCl (12 M HCl) and concentrated sulfuric acid (18.3 M H2SO4)]. Results: The highest conjugation efficiency was obtained when the conjugation was achieved in MeOH-TFA solution, and for the polymer-drug conjugates after the treatment with concentrated sulfuric acid. recognized by immune system rapidly (12). On the other hand, PEG is hydrophilic and can escape from the immune system. Scientists prepared or used copolymers or tri-block-polymers of PEG and PCL and prepared either nanoparticles or micelles as drug delivery vehicles and evaluated in vitro and in vivo properties (13). Gong et al studied affinity of PEG-PCL-PEG micelles (14). Hu et al prepared micelles and polymersomes from PCL-PEG-PCL polymers to be used as drug carriers (15). Cytotoxic properties of Doxorubicin loaded PEG-PCL micelles prepared with functionalized PEGs were evaluated by Chen et al. and promising results were reported (16). An accurate determination of drug conjugation is important since higher dose given to a patient may create some unwanted symptoms like cardiomyopathy. In this study, methoxy konjugasyonu Conclusion: It was concluded that, MeOH-TFA method was a good method for conjugation of DOX to M) method was better other present in literature for determination of the amount of DOX linked to the polymer via","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70675645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of cross-protection of Androctonus crassicauda antivenom against Leiurus abdullahbayrami venom.","authors":"Mehmet Ali Kanat, D. Altun, Kübra Kiliç, Edibe Nurzen Namlı Bozkurt, Ertuğrul Turan, G. Cengi̇z, İlhan Bozyi̇ği̇t","doi":"10.5505/turkhijyen.2022.34445","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.34445","url":null,"abstract":"","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70675724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Salmonella Typhimurium and Salmonella Hessarek in wild birds","authors":"E. Günaydın, Özlem Kardoğan, G. Goncagül, Yavuz Çokal, Pınar Mursaloğlu Kaynar","doi":"10.5505/turkhijyen.2022.34538","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.34538","url":null,"abstract":"","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70675842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Autacoids in the inflammation","authors":"S. Kemer, Sefa Meti̇n, Gökçe Sural, E. Demirel Yilmaz","doi":"10.5505/turkhijyen.2022.66742","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.66742","url":null,"abstract":"","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70676883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Molecular Mechanisms in Targeted Therapy Strategies in Ovarian Cancer","authors":"B. Çolak, D. Cansaran Duman, E. Yilmaz","doi":"10.5505/turkhijyen.2022.60362","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.60362","url":null,"abstract":"Cancer is a disease that occurs in tissues and organs as a result of uncontrolled cell divisions. There are numerous types of cancer related with different frequencies and mortality rate. Ovarian cancer is the seventh common type of cancer worldwide and is the fifth cause of cancer-related death. Although there are standard treatment methods for cancer types, people give different responses to these treatment methods. In spite of all the treatment strategy developed, ovarian cancer still has a high mortality rate. For this reason, it is very important to better understand the drug resistance mechanisms that prevent the effecttiveness of today’s treatment methods, to develop new treatment methods and the determination of molecular characterization. In recent years, research has focused on methods containing pathway analysis within the scope of developing targeted therapy strategies for ovarian cancer. In this context, the activity status of onco-proteins in pathways such as WNT, Hedgehog and NOTCH signaling pathways were evaluated. In addition, the innovative treatment efficiency of Nanog protein and photodynamic therapy options on ovarian cancer has been detailed in recent years. It will be possible to increase the quality of the healing process of ÖZET Kanser, kontrol edilemeyen hücre bölünmeleri sonucunda doku ve organlarda meydana gelen hasarların bütünüdür. Farklı görülme sıklığı ve ölüm oranları ile ilişkili birçok kanser türü vardır. Yumurtalık kanseri dünya genelinde yaygınlık olarak yedinci sırada gelmekte olup kansere bağlı ölüm nedeni olarak beşinci sırada gelmektedir. Kanser türlerinin kendi içinde standart tedavi yöntemleri olmasına rağmen bireyler bu tedavi yöntemlerine farklı cevaplar vermektedir. Geliştirilen tüm tedavi stratejilerine rağmen yumurtalık kanseri hala yüksek ölüm oranına sahiptir. Bu sebeple günümüzdeki tedavi yöntemlerinin etkinliğini engelleyen ilaca karşı oluşan direnç mekanizmalarını kavramak, yeni tedavi yöntemleri geliştirmek ve moleküler karakterizasyonunu belirlemek oldukça önemlidir. Son yıllarda oldukça gündeme gelen yumurtalık kanserinde hedefe yönelik terapi stratejileri geliştirilmesi kapsamında yolak analizleri üzerine odaklanılmıştır. Bu kapsamda onkoproteinlerin WNT, Hedgehog ve NOTCH sinyal yolağı gibi yolaklardaki etkinlik durumları değerlendirilmiştir. Ayrıca, son yıllarda etkinliği belirlenmiş Nanog proteini ve fotodinamik tedavi seçeneklerinin yumurtalık kanseri üzerindeki yenilikçi tedavi etkinliği detaylandırılmıştır. Yumurtalık kanseri tedavisinde mevcut ve geliştirilmesi Türk Hijyen ve Deneysel Biyoloji Dergisi 1Ankara Üniversitesi Biyoteknoloji Enstitüsü, Ankara Geliş Tarihi / Received : Kabul Tarihi / Accepted : İletişim / Corresponding Author : Demet CANSARAN DUMAN Ankara Üniversitesi, Biyoteknoloji Enstitüsü Merkez Laboratuvarı, Tandoğan / Ankara Türkiye E-posta / E-mail : dcansaran@yahoo.com 24.02.2021 16.04.2021 Çolak B, Cansaran Duman D, Yılmaz E. Yumurtalık kanserinde hedefe yönelik te","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70677085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Certified Health Education Programs Under the Coordination of The Türkiye Ministry of Health by The Participants","authors":"Gülsen Topaktaş, Emine Çetin Aslan, Hüseyin Aslan","doi":"10.5505/turkhijyen.2022.02256","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.02256","url":null,"abstract":"","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70675501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of diabetes mellitus in the progression and prognosis of COVID-19","authors":"Filiz Yıldırım, H. Karageçili, Reyhan Öztürk, Zuhal Yıldırım","doi":"10.5505/turkhijyen.2022.58708","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.58708","url":null,"abstract":"Objective: The COVID-19 pandemic, caused by SARSCoV-2 of Coronaviruses types, is a highly infectious disease caused by SARS-CoV-2, which first appeared in China. The presence of comorbid diseases, especially diabetes, and advanced age are determinants of the mortality and morbidity of the disease. In this study, it was aimed to examine the possible role of Diabetes mellitus (DM) in the course of the novel coronavirus disease (COVID-19). Methods: In this study, the data of 81 patients who applied to Ankara Polatlı Duatepe State Hospital between January 01 and May 05, 2021 and were confirmed to have COVID-19 and were hospitalized in the COVID-19 service for 5 to 20 days were analyzed. 39 female and 42 male patients were included in the study and the patients were divided into three groups. COVID-19 group (n=26;10 female, 16 male), COVID-19+DM group (n=28;13 female, 15 male), and COVID-19+hypertension (HT) group (n=27;16 female, 11 male). Demographic, clinical, radiological and laboratory records of the patients were reviewed retrospectively. Results: There was a statistically significant difference between the groups when they matched for age and gender (p<0.05). The mean age of the COVID-19+DM and COVID-19+HT groups was higher than the COVID-19 group (p<0.05). COVID-19 group 55.96±15.545 years, COVID-19+DM 68.29±12.849 years, COVID-19+HT 71.48±11.416 years. Only 32 patients had positive PCR tests, and the rate was 39.5%. The number of patients with CT is 69, and the rate is 85.2%. The number of CT-positive patients is 56 and the positivity rate is 81%. The PCR test positivity rate is lower than the CT positivity rate. The serum fasting blood glucose (FBG) and C-reactive protein (CRP) levels were significantly higher in the COVID-19+DM group when compared to the COVID-19 group and COVID-19+HT group (p<0.05). The serum sodium (Na) and chlorine (Cl) levels were significantly lower in the COVID-19+DM group when compared to the COVID-19 group and COVID-19+HT group (p<0.05). The serum creatinine and phosphorus (P) levels were significantly higher in the COVID-19+DM group when compared to the COVID-19 group (p<0.05).The serum hemoglobin (HGB) and hematocrit (HCT) levels were considerably higher in the COVID-19 group compared to the COVID-19+DM group (p<0.05). Conclusion: When all the data we obtained in our study are evaluated;we determined that the comorbidity effect of DM is important in the clinical course of patients infected with the SARS-CoV-2 virus. We think that SARSCoV-2 pneumonia patients with diabetes may be more severe than those without diabetes in terms of organ damage, and inflammatory variables, and are more likely to evolve to a worse prognosis, regardless of whether the additional comorbidities were present or not. © 2022,Turk Hijyen ve Deneysel Biyoloji Dergisi. All Rights Reserved.","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70677146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mitigative effects of chloroquine treatment against hypoxia-induced intestinal injury: A histological and immunohistochemical study","authors":"A. Akin, E. Kaymak, E. Öztürk, Tayfun Ceylan, B. Yalçın, K. Başaran, D. Karabulut, Z. Doğanyiğit, S. Özdamar, B. Yakan","doi":"10.5505/turkhijyen.2022.78476","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.78476","url":null,"abstract":"Objective: Hypoxia has an important role in the disruption of intestinal mucosal integrity because of inflammation and apoptosis induced by inflammatory cytokines such as TNF-a (Tumor necrosis factor-alpha), IL-6 and IFN-y, and apoptotic regulatory proteins. Chloroquine (CLQ) is a drug used in the novel coronavirus disease (COVID-19) and is widely used for the treatment of many inflammatory diseases such as malaria and rheumatoid arthritis. In this study, we aimed to reduce the destructive effects of hypoxia-induced inflammation and apoptosis in the intestinal mucosa of rats with CLQ applications. Methods: For this purpose, a total of 24 Wistar Albino rats were randomly divided into three groups;Group I: Control group (n=8), Group II: Hypoxia (n=8) and Group III: Hypoxia + CLQ (n=8). The control group was housed in plexiglass cages to keep the oxygen levels at 10% levels for 28 days, while the hypoxia and hypoxia+CLQ groups were housed in a normal atmospheric environment (21% O2), and the hypoxia+CLQ group was administered CLQ at a dose of 50 mg/kg every day for 28 days. At the end of the experiment, the intestinal tissues of the experimental animals, were extracted under the anesthesia and they were sacrificed. Results: As a result of histopathological evaluations, it was determined that CLQ applications showed healing properties on the histopathological effects induced by hypoxia in the intestine. While an increase in TNF-α expression was observed in the hypoxia group, a statistically significant decrease was detected in the hypoxia+CLQ group. In addition, Bax expression was found to be statistically significantly lower in the hypoxia+CLQ group when compared to the hypoxia group. On the contrary, it was observed that Bcl-2 expression was statistically significantly increased in the hypoxia+CLQ group compared to the Hypoxia group. Conclusion: We observed that hypoxia causes significant damage to the intestinal mucosa and triggers a severe inflammation that drives cells to apoptosis. Considering the curative effects of chloroquine on the intestinal mucosa, we suggest that this anti-inflammatory drug has a potential to use clinically to alleviate the deleterious effects of hypoxia in the intestine. © 2022. All Rights Reserved.","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70677455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Blood Culture Results in Hemodialysis Patients","authors":"S. Görgün, M. Usanmaz","doi":"10.5505/turkhijyen.2022.93798","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.93798","url":null,"abstract":"Objective: Hemodialysis is a life-saving invasive procedure in patients with chronic renal failure (CRF). However, in this procedure, infections, which often cause patient deaths, may develop due to catheter application. These infections are detected by monitoring the blood and/or catheter cultures of the patients. In the study, an analysis of the blood culture results of patients with CRF undergoing hemodialysis was performed in order to contribute to the epidemiological data. Methods: In this study, the culture results of patients who were thought to have catheter infection in the Hemodialysis Unit of SBU Samsun Training and Research Hospital between 2017 and 2020 were evaluated retrospectively. Blood cultures sent to the laboratory were incubated in the hemoculture organisms isolated from blood cultures were Pseudomonas aeruginosa (5.4%), Enterococcus faecalis (3.6%), E. coli , Enterobacter cloacae complex (3.6%), and Klebsiella pneumoniae (1.8%). Of the coagulase-negative staphylococci, 17 (70.8%) were resistant to penicillin and 18 (75.0) to methicillin. Of the S. aureus strains, 3 (50.0%) were found to be resistant to penicillin and 3 (50.0%) to methicillin. A statistically significant difference was found between CNS and S. aureus growth in blood cultures (p<0.05). Conclusion: High rates of bacteria were isolated from blood cultures of hemodialysis patients in our hospital. This result makes it necessary to draw attention to aseptic conditions in the hemodialysis process. Monitoring of blood and catheter cultures, detection of causative agents and evaluation of antibiogram results will play a key role in preventing infections and taking necessary precautions in hemodialysis patients.","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70677769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution of gram negative bacteria isolated from blood culture and antibiotic resistance rates","authors":"Nihan Çeken, Hülya Duran, Tuğba Kula Atik","doi":"10.5505/turkhijyen.2022.57983","DOIUrl":"https://doi.org/10.5505/turkhijyen.2022.57983","url":null,"abstract":"Objective: Bacteremia is a serious condition that causes hospitalization and increases mortality. Gram negative bacteria are frequently isolated as causative agents. The aim of this study was to evaluate the distribution and antimicrobial resistance of the gram negative bacteria isolated from blood cultures in our hospital. Methods: Gram negative bacteria isolated from blood culture samples sent to the microbiology laboratory between 2016-2019 were retrospectively analyzed. The blood cultures were performed by BacT/ALERT 3D (bioMérieux, France) and Render-BC128 (China). Bacterial identification and antibiotic susceptibility tests were performed using conventional methods and BD Phoenix 100 (BD Phoenix System, Beckton Dickinson, ABD) automated systems. Results: A total of 10,315 blood cultures obtained from hospitalized patients between (95.4%), Pseudomonas aeruginosa to ciprofloxacin (26.1%). The most susceptible antibiotics were carbapenems and amikasin for Enterobacterales , amikasin and gentamycin for P. aeruginosa , amikasin and trimethoprim-sulfamethaxazole for A.baumannii . Conclusion: In our study, the frequency of gram-negative bacteria growth in blood culture was found to be 27.5%, similar to literature data. It was observed that the determined bacterial distribution was compatible with different studies. Blood culture is the most important test in the diagnosis of bacteremia and in directing the right treatment. The distribution of microorganisms isolated in bacteremia and their antibiotic resistance rates changes by center. For this reason, it was think that each hospital should determine its own data at regular intervals and guide antibiotic selection according to these results.","PeriodicalId":35553,"journal":{"name":"Turk hijiyen ve deneysel biyoloji dergisi. Turkish bulletin of hygiene and experimental biology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70676968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}